CN204293711U - A kind of high-altitude slow-descending equipment - Google Patents
A kind of high-altitude slow-descending equipment Download PDFInfo
- Publication number
- CN204293711U CN204293711U CN201420400451.XU CN201420400451U CN204293711U CN 204293711 U CN204293711 U CN 204293711U CN 201420400451 U CN201420400451 U CN 201420400451U CN 204293711 U CN204293711 U CN 204293711U
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- gear
- supporting plate
- hollow stem
- fixed
- rope sheave
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Abstract
The utility model discloses a kind of high-altitude slow-descending equipment, comprise supporting plate, gear, binding yarn wheel, steel wire rope and hollow stem; Gear is two and engages each other and be rotatably fixed on supporting plate; Binding yarn wheel has two, and this two binding yarns wheel is coaxial with two gears respectively and be individually fixed on corresponding gear; Wirerope-winding is between two binding yarn wheels; Hollow stem is fixed on supporting plate upper end, and steel wire rope passes from hollow stem inside; Also comprise self-braking device, it comprises the tripping spring being provided with pretension and brakes to pin down brake apparatus halved tie rope sheave; And manual braking device, it is for carrying out hand brake to downslide.The utility model have can Braking mode, safe and reliable, with low cost, be convenient for carrying, the advantage such as story height applicability is strong.
Description
Technical field
The utility model relates to a kind of escape device, particularly a kind of high-altitude slow-descending equipment.
Background technology
Along with Chinese society expanding economy, the material life of people must improve, and high-frequency fire incident also gets more and more.Solve current high building fire fighting to bring into schedule, the high-rise emergency escape of personnel is very urgent with safe escape problem.
The slowly descending device for high building speed generally used at present is uncontrollable, and friction force of steel rope is not enough, easily skid, in decline process, easily occur problems such as falling; In addition, traditional escape device generally uses reel by wire rope roll around together, if story height, so after winding, the volume of whole device is large, and Heavy Weight, is not easy to carry; Also there is the problems such as complicated operation, such as, need first hand brake when traditional slow descending device uses, easily make mistakes when user uses at a pinch, cause life danger; Or user is timid and the problem such as dare not to attempt, having to pass through special training could use, and is difficult to carry out large popular popularization.
Summary of the invention
The purpose of this utility model is to provide a kind of high-altitude slow-descending equipment, overcome traditional escape device for high-rise buildings can not Braking mode, friction force of steel rope is not enough, easily skid, volume is large, the uncontrollable shortcoming of speed.
For achieving the above object, the utility model provides a kind of high-altitude slow-descending equipment, comprises supporting plate, gear, binding yarn wheel, steel wire rope and hollow stem; Gear is two and engages each other and be rotatably fixed on supporting plate; Binding yarn wheel has two, and this two binding yarns wheel is coaxial with two gears respectively and be individually fixed on corresponding gear; Wirerope-winding is between two binding yarn wheels; Hollow stem is fixed on supporting plate upper end, and steel wire rope passes from hollow stem inside; Also comprise,
Self-braking device, it comprise be provided with pretension tripping spring to pin down brake apparatus, halved tie rope sheave is braked; And
Manual braking device, it is for carrying out hand brake to downslide.
In technique scheme, self-braking device comprises the brake block I, plectrum I, handle I, tripping spring, screw rod, nut, stay cord I and the driving lever I that are arranged at binding yarn wheel inner side, the inner face that brake block I and binding yarn are taken turns is reserved with gap, handle I leading portion is connected with the plectrum I brake block I can extrapolated, nut to be fixed on supporting plate and to be connected with screw flight, screw rod is connected with handle I end by tripping spring, and tripping spring has downward pretension to handle I end; Stay cord I one end is fixedly connected with handle I end, and the other end extends upward through solid rope point I and is fixedly connected with driving lever I, and driving lever I is fixedly connected on hollow stem outer surface by solid bar point I.
In technique scheme, manual braking device comprises brake block II, plectrum II, handle II, stay cord II and driving lever II, and the inner face that brake block II and binding yarn are taken turns is reserved with gap; Handle II one end is connected with the plectrum II brake block II can extrapolated, and its other end is fixedly connected with one end of stay cord II, and the other end of stay cord II is fixedly connected with driving lever II by solid rope point II, and driving lever II is fixedly connected on hollow stem outer surface by solid bar point II.
In technique scheme, the utility model also comprises solid rope component, it comprises cradling piece, head rod, the second connecting rod, solid rope sheave I, solid rope sheave II, solid rope sheave III, first movable spring and the second movable spring, cradling piece is fixedly installed on supporting plate, head rod one end is connected with cradling piece is rotating, and the other end of head rod is connected with solid rope sheave III, and the middle part of head rod is connected with cradling piece by the first movable spring; Second connecting rod one end is connected with cradling piece is rotating, and the middle part of the second connecting rod and the other end are connected with solid rope sheave II, solid rope sheave I respectively, Gu rope sheave II is connected with cradling piece by the second movable spring with the middle part of the second connecting rod admittedly between rope sheave I;
In technique scheme, the utility model also comprises the intermeshing first planet gear with gear, and second planetary gear intermeshing with this first planet gear, this second planetary gear and the admittedly solid rope sheave I of restricting in component cooperatively interact to compress the steel wire rope passed from centre.
In technique scheme, admittedly rope component also comprises spanner, swing arm; Spanner is fixed on supporting plate by the first fixing point, and is flexibly connected with cradling piece one end by the first moving point; Swing arm is fixed on supporting plate by the second fixing point, and is flexibly connected with the other end of cradling piece by the second moving point.
In technique scheme, the diameter of binding yarn wheel is less than the diameter of gear.
In technique scheme, the utility model also comprises centrifugal friction type deceleration device, and it comprises holder, brake disc, friction hoof block, travelling gear, power transmission shaft, and holder is fixed on supporting plate, brake disc is fixed on holder, and friction hoof block is adjacent on the disc brake rotor; The side of this centrifugal friction type deceleration device is provided with the intermeshing travelling gear with gear, and travelling gear is fixed on one end of power transmission shaft, and the other end of this power transmission shaft is connected by spring with friction hoof block.
In technique scheme, supporting plate lower end is fixed with pedal.
In technique scheme, hollow stem upper end is fixedly connected with two directive wheels, and two directive wheels lead to the steel wire rope passed from hollow stem and to rub not produce with hollow stem inwall.
Firm place is first fixed in the upper end of steel wire rope by the utility model in use, lower end is directly transferred to bottom of the building, user stands on pedal, can lie on supporting plate with safety belt again, time outside human motion to eminence edge, the driving lever I pressed down gradually in self-braking device can steadily glide, and midway runs into dangerous situation or the special circumstances such as terrified and can unclamp rapidly driving lever I and can brake in time, presses down driving lever gently and slide to ground I time after processing special circumstances.
Compared with prior art, the utility model has following beneficial effect:
This device is applicable to all kinds of skyscraper such as the places such as office building, office building, public place of entertainment, hospital, school and is equipped with, and also can be the rescue device of fire department, also can be used for work high above the ground etc. needs at the uniform velocity to delay the occasion of falling.This device characteristic:
1, the utility model has self-braking device, and itself is before use in braking, and user presses down driving lever I gently and just can glide, when running into dangerous situation, instinct unclamps driving lever I, the just energy self-actuating brake of this device, reduces the fear of user, promotes the sense of security.
2, the utility model has solid rope component, can prevent steel wire rope from derailing, increase frictional force, ensures to glide firmly smoothly.
3, with low cost.The utility model volume is little, lightweight, part is few, structure is simple, low cost of manufacture.
4, be convenient for carrying.Due to compact conformation, parts are simplified, without the need to by wire rope roll around, so occupy little space, be beneficial to and carry.
5, high applicability is strong.In the utility model, the length of steel wire rope can customize according to the story height at user place, and be applicable to the floor of differing heights, high-rise building is still applicable.
Accompanying drawing explanation
Fig. 1 is the Facad structure schematic diagram of the utility model high-altitude slow-descending equipment.
Fig. 2 is the structure schematic diagram of the utility model high-altitude slow-descending equipment.
Fig. 3 is the intermeshing structural representation of the utility model high-altitude slow-descending equipment middle gear.
Fig. 4 is the structural representation of self-braking device in the utility model high-altitude slow-descending equipment.
Fig. 5 is the structural representation of manual braking device in the utility model high-altitude slow-descending equipment.
Fig. 6 is the structural representation of component of admittedly restricting in the utility model high-altitude slow-descending equipment.
Fig. 7 is the structural representation of centrifugal friction type deceleration device in the utility model high-altitude slow-descending equipment.
Main Reference Numerals illustrates:
1-supporting plate;
2-pedal;
3-steel wire rope;
4-restricts component admittedly, 41-spanner, 42-cradling piece, 431-first movable spring, 432-second movable spring, the solid rope sheave I of 441-, the solid rope sheave II of 442-, solid rope sheave III, 451-first fixing point of 443-, 452-second fixing point, 461-first moving point, 462-second moving point, 47-swing arm, 48-head rod, 49-second connecting rod;
5-second planetary gear;
6-first planet gear;
7-self-braking device, 71-brake block I, 72-plectrum I, 73-handle I, 74-tripping spring, 75-screw rod, 76-nut, 77-stay cord I, 781-is restricted a little I, 782-solid bar point I, 79-driving lever I admittedly;
8-manual braking device, the solid bar point II, 862-of 81-brake block II, 82-plectrum II, 83-handle II, 84-stay cord II, 85-driving lever II, 861-restricts a little II admittedly;
9-gear;
10-binding yarn is taken turns.
11-centrifugal friction type deceleration device, 111-brake disc, 112-holder, 113-friction hoof block, 114-travelling gear, 115-power transmission shaft;
12-hollow stem;
13-directive wheel.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail, but is to be understood that protection domain of the present utility model not by the restriction of detailed description of the invention.Clearly represent unless otherwise other, otherwise in whole description and claims, term " comprise " or its conversion as " comprising " or " including " etc. by be understood to include the element of stating or part, and do not get rid of other element or other part.
Embodiment
As shown in Fig. 1 to 7, high-altitude slow-descending equipment of the present utility model, comprises supporting plate 1, gear 9, binding yarn wheel 10, steel wire rope 3 and hollow stem 12; Gear 9 is two and engages each other and be rotatably fixed on supporting plate 1; Binding yarn wheel 10 has two, and these two binding yarns wheels are coaxial with two gears 9 respectively and be individually fixed on corresponding gear 9, and the diameter that binding yarn takes turns 10 is less than the diameter of gear 9; Steel wire rope 3 is wound between two binding yarn wheels 10; Hollow stem 12 is fixed on supporting plate 1 upper end, and steel wire rope 3 passes from hollow stem 12 inside; Hollow stem 12 upper end is fixedly connected with two directive wheels, 13, two directive wheels 13 and leads to the steel wire rope 3 passed from hollow stem 12 and to rub not produce with hollow stem 12 inwall; Supporting plate 1 lower end is fixed with pedal 2.
High-altitude slow-descending equipment of the present utility model is provided with self-braking device 7, and it comprises the tripping spring being provided with pretension and pins down brake apparatus, brakes with halved tie rope sheave 10; Self-braking device 71 comprises the brake block I 71, plectrum I 72, handle I 73, tripping spring 74, screw rod 75, nut 76, stay cord I 77 and the driving lever 79 that are arranged at inside binding yarn wheel 10, the inner face that brake block I 71 and binding yarn take turns 10 is reserved with gap, handle I 73 leading portion with the plectrum 72 that brake block I 71 is extrapolated can be connected, nut 76 to be fixed on supporting plate 1 and to be threaded with screw rod 75, screw rod 75 is connected with handle I 73 end by tripping spring 74, and tripping spring 74 pairs of handle I 73 ends have downward pretension; Stay cord I 77 one end is fixedly connected with handle I 73 end, and the other end extends upward through solid rope point I 781 and is fixedly connected with driving lever I 79, and driving lever I 79 is fixedly connected on hollow stem 12 outer surface by solid bar point I 782.User presses down driving lever I gently and just can glide, and when running into dangerous situation, instinct unclamps driving lever I, the just energy self-actuating brake of this device, the fear of reduction user, the lifting sense of security.
High-altitude slow-descending equipment of the present utility model is provided with manual braking device 8, and it is for carrying out hand brake to downslide.Manual braking device 8 comprises brake block II 81, plectrum II 82, handle II 83, stay cord II 84 and driving lever II 85, and the inner face that brake block II 81 and binding yarn take turns 10 is reserved with gap; Handle II 83 one end is connected with the plectrum II 82 brake block II can extrapolated, its other end is fixedly connected with one end of stay cord II 84, the other end of stay cord II 84 is fixedly connected with driving lever II 85 by solid rope point II 862, and driving lever II 85 is fixedly connected on hollow stem 12 outer surface by solid bar point II 861.Manual braking device 8, as the second braking scheme of the present utility model, gives practical sense and the sense of security, forms and brake dual fail-safe, guarantee the use safety of user together with self-braking device 7.
High-altitude slow-descending equipment of the present utility model is provided with the intermeshing first planet gear 6 with gear, and second planetary gear 5 intermeshing with this first planet gear 6, this second planetary gear 5 and the admittedly solid rope sheave I 441 of restricting in component 4 cooperatively interact to compress the steel wire rope 3 passed from centre.In dropping process, it is driving force that steel wire rope 3 takes turns 10 frictional force to binding yarn, this drive force gear 9 rotates clockwise, gear 9 drives first planet gear 6 to rotate counterclockwise again, first planet gear 6 drives the second planetary gear 5 to rotate clockwise, second planetary gear 5 pairs steel wire rope 3 has pressure, to steel wire rope 3 frictional force upwards when it rotates clockwise, to reach the effect falling to slowing down.
High-altitude slow-descending equipment of the present utility model is provided with solid rope component 4, it comprises cradling piece 42, head rod 48, second connecting rod 49, solid rope sheave I 441, solid rope sheave II 442, solid rope sheave III 443, first movable spring 431 and the second movable spring 432, cradling piece 42 is fixedly installed on supporting plate 1, head rod 48 one end is connected with cradling piece 42 is rotating, the other end of head rod 48 is connected with solid rope sheave III 443, and the middle part of head rod 48 is connected with cradling piece 42 by the first movable spring 431; Second connecting rod 49 one end is connected with cradling piece 42 is rotating, the middle part of the second connecting rod 49 and the other end are connected with solid rope sheave II 442, solid rope sheave I 441 respectively, Gu rope sheave II 442 is connected with cradling piece 42 by the second movable spring 432 with the middle part of the second connecting rod 49 admittedly between rope sheave I 441; Admittedly rope component 4 also comprises spanner 41, swing arm 47; Spanner 41 is fixed on supporting plate 1 by the first fixing point 451, and is flexibly connected with cradling piece 42 one end by the first moving point 461; Swing arm 47 is fixed on supporting plate 1 by the second fixing point 452, and is flexibly connected with the other end of cradling piece 42 by the second moving point 462.Admittedly rope component 4 is dismountablely be arranged on supporting plate 1: due to the existence of the first fixing point 451 and the second fixing point 452, when spanner 41 is pulled clockwise, cradling piece 42 is driven to move to left, drive swing arm 47 clockwise oscillation, admittedly the solid rope sheave in rope component 4 can depart from around the steel wire rope 3 on binding yarn wheel 10, then whole component 4 of admittedly restricting departs from supporting plate 1, reaches dismountable object.Admittedly rope component 4 can increase pressure to increase frictional force upwards to steel wire rope 3, also can prevent steel wire rope 3 from departing from binding yarn wheel 10 on the other hand.
High-altitude slow-descending equipment of the present utility model is provided with centrifugal friction type deceleration device 11, it comprises holder 112, brake disc 111, friction hoof block 113, travelling gear 114, power transmission shaft 115, holder 112 is fixed on supporting plate 1, brake disc 111 is fixed on holder 112, and friction hoof block 113 is adjacent on brake disc 111; The side of this centrifugal friction type deceleration device 11 is provided with the intermeshing travelling gear 114 with gear 9, and travelling gear 114 is fixed on one end of power transmission shaft 115, and the other end of this power transmission shaft 115 is connected by spring with friction hoof block 113.Centrifugal friction type deceleration device 11 can eliminate acceleration of gravity, and reduction of speed even, the sense of security is strong.
Firm place is first fixed in the upper end of steel wire rope 3 by the utility model in use, lower end is directly transferred to bottom of the building, user stands on pedal 2, can lie on supporting plate 1 with safety belt again, time outside human motion to eminence edge, the driving lever I 79 pressed down gradually in self-braking device 7 can steadily glide, and midway runs into dangerous situation or the special circumstances such as terrified and can unclamp rapidly driving lever I 79 and can brake in time, presses down driving lever gently and slide to ground I 79 times after processing special circumstances.
The aforementioned description to concrete exemplary of the present utility model is to illustrate and the object of illustration.These descriptions not want the utility model to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.The object selected exemplary embodiment and describe is to explain certain principles of the present utility model and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present utility model and various different selection and change.Scope of the present utility model is intended to limited by claims and equivalents thereof.
Claims (10)
1. a high-altitude slow-descending equipment, is characterized in that: comprise supporting plate (1), gear (9), binding yarn wheel (10), steel wire rope (3) and hollow stem (12); Described gear (9) is two and engages each other and be rotatably fixed on described supporting plate (1); Described binding yarn wheel (10) has two, and these two binding yarns are taken turns coaxial with described two gears (9) respectively and are individually fixed on corresponding described gear (9); Described steel wire rope (3) is wound between described two binding yarns wheel (10); Described hollow stem (12) is fixed on described supporting plate (1) upper end, and described steel wire rope (3) passes from described hollow stem (12) inside; Also comprise,
Self-braking device (7), it comprise be provided with pretension tripping spring to pin down brake apparatus, halved tie rope sheave (10) is braked; And
Manual braking device (8), it is for carrying out hand brake to downslide.
2. high-altitude slow-descending equipment according to claim 1, it is characterized in that: described self-braking device (7) comprises the brake block I (71) being arranged at described binding yarn wheel (10) inner side, plectrum I (72), handle I (73), tripping spring (74), screw rod (75), nut (76), stay cord I (77), and driving lever I (79), the inner face that described brake block I (71) and described binding yarn take turns (10) is reserved with gap, described handle I (73) leading portion with the plectrum (72) that described brake block I (71) is extrapolated can be connected, described nut (76) is fixed on described supporting plate (1) and goes up and be threaded with described screw rod (75), described screw rod (75) is connected with described handle I (73) end by described tripping spring (74), described tripping spring (74) has downward pretension to described handle I (73) end, described stay cord I (77) one end is fixedly connected with handle I (73) end, the other end extends upward through solid rope point I (781) and is fixedly connected with described driving lever I (79), and described driving lever I (79) is fixedly connected on described hollow stem (12) outer surface by solid bar point I (782).
3. high-altitude slow-descending equipment according to claim 1, it is characterized in that: described manual braking device (8) comprises brake block II (81), plectrum II (82), handle II (83), stay cord II (84) and driving lever II (85), the inner face that described brake block II (81) and described binding yarn take turns (10) is reserved with gap; Described handle II (83) one end is connected with the plectrum II (82) described brake block II can extrapolated, its other end is fixedly connected with one end of described stay cord II (84), the other end of described stay cord II (84) is fixedly connected with described driving lever II (85) by solid rope point II (862), and described driving lever II (85) is fixedly connected on described hollow stem (12) outer surface by solid bar point II (861).
4. high-altitude slow-descending equipment according to claim 1, it is characterized in that: also comprise solid rope component (4), it comprises cradling piece (42), head rod (48), second connecting rod (49), Gu rope sheave I (441), Gu rope sheave II (442), Gu rope sheave III (443), first movable spring (431), and second movable spring (432), described cradling piece (42) is fixedly installed on described supporting plate (1), described head rod (48) one end is connected with described cradling piece (42) is rotating, the other end of described head rod (48) is connected with described solid rope sheave III (443), the middle part of described head rod (48) is connected with described cradling piece (42) by described first movable spring (431), described second connecting rod (49) one end is connected with described cradling piece (42) is rotating, the middle part of described second connecting rod (49) and the other end are connected with described solid rope sheave II (442), solid rope sheave I (441) respectively, and described solid rope sheave II (442) is connected with described cradling piece (42) by described second movable spring (432) with the middle part of described second connecting rod (49) between solid rope sheave I (441).
5. high-altitude slow-descending equipment according to claim 4, it is characterized in that: also comprise the intermeshing first planet gear (6) with described gear, and second planetary gear (5) intermeshing with this first planet gear (6), this second planetary gear (5) and described solid rope sheave I (441) of admittedly restricting in component (4) cooperatively interact to compress the steel wire rope (3) passed from centre.
6. high-altitude slow-descending equipment according to claim 4, is characterized in that: described component (4) of admittedly restricting also comprises spanner (41), swing arm (47); Described spanner (41) is fixed on described supporting plate (1) by the first fixing point (451), and is flexibly connected with described cradling piece (42) one end by the first moving point (461); Described swing arm (47) is fixed on described supporting plate (1) by the second fixing point (452), and is flexibly connected with the other end of described cradling piece (42) by the second moving point (462).
7. high-altitude slow-descending equipment according to claim 1, is characterized in that: the diameter of described binding yarn wheel (10) is less than the diameter of described gear (9).
8. high-altitude slow-descending equipment according to claim 1, it is characterized in that: also comprise centrifugal friction type deceleration device (11), it comprises holder (112), brake disc (111), friction hoof block (113), travelling gear (114), power transmission shaft (115), described holder (112) is fixed on described supporting plate (1), described brake disc (111) is fixed on described holder (112), and described friction hoof block (113) is adjacent on described brake disc (111); The side of this centrifugal friction type deceleration device (11) is provided with and described gear (9) intermeshing travelling gear (114), described travelling gear (114) is fixed on one end of described power transmission shaft (115), and the other end of this power transmission shaft (115) is connected by spring with described friction hoof block (113).
9. high-altitude slow-descending equipment according to claim 1, is characterized in that: described supporting plate (1) lower end is fixed with pedal (2).
10. high-altitude slow-descending equipment according to claim 1, it is characterized in that: described hollow stem (12) upper end is fixedly connected with two directive wheels (13), described two directive wheels (13) are led to the steel wire rope (3) passed from hollow stem (12) and to be rubbed not produce with hollow stem (12) inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420400451.XU CN204293711U (en) | 2014-07-18 | 2014-07-18 | A kind of high-altitude slow-descending equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420400451.XU CN204293711U (en) | 2014-07-18 | 2014-07-18 | A kind of high-altitude slow-descending equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204293711U true CN204293711U (en) | 2015-04-29 |
Family
ID=53099296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420400451.XU Expired - Fee Related CN204293711U (en) | 2014-07-18 | 2014-07-18 | A kind of high-altitude slow-descending equipment |
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| CN (1) | CN204293711U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104056369B (en) * | 2014-07-18 | 2017-01-11 | 江庆儒 | High-altitude slow descending device |
| CN111167028A (en) * | 2020-02-15 | 2020-05-19 | 中裹安民应急信息技术有限公司 | A glove brake device |
| CN112909678A (en) * | 2021-01-19 | 2021-06-04 | 张玲 | Can adjust connection angle's winding displacement connector |
| WO2024139644A1 (en) * | 2022-12-29 | 2024-07-04 | 中际联合(北京)装备制造有限公司 | Descent control device and escape apparatus |
-
2014
- 2014-07-18 CN CN201420400451.XU patent/CN204293711U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104056369B (en) * | 2014-07-18 | 2017-01-11 | 江庆儒 | High-altitude slow descending device |
| CN111167028A (en) * | 2020-02-15 | 2020-05-19 | 中裹安民应急信息技术有限公司 | A glove brake device |
| CN112909678A (en) * | 2021-01-19 | 2021-06-04 | 张玲 | Can adjust connection angle's winding displacement connector |
| WO2024139644A1 (en) * | 2022-12-29 | 2024-07-04 | 中际联合(北京)装备制造有限公司 | Descent control device and escape apparatus |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150429 Termination date: 20160718 |
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| CF01 | Termination of patent right due to non-payment of annual fee |